Syringe.



A. E. WILBE.

SYRINGE.

APPLICATION FILED FEB. 19

Patented Dec. 2, 1913.

z .w m m ad atten/mu# cmJuunm rmANnnuM-n co.. WASHINGTON, u. c.

ARTHUR E. WILBE, OF NEW YORK, N. Y.

SYRINGE.

Specification of Letters Patent.

Application filed February 19, 1913.

Patented Dec. 2,1913.

Serial No. 749,490.

To all whom, t may concern Be it known that I, ARTHUR E. Winer, a citizen of the United States, residing at New York city, in the county of New York and State of New York, have invented new and useful Improvements in Syringes, of which the following is a specication.

This invention relates to douches or syringes, and has for its object to provide a simple, convenient and effective valveless device of this character, wherein the liquid will be discharged at the outer end of the nozzle and will be caused to return and reenter the bulb at the inner end of the nozzle.

To these ends the invention consists in the novel details of construction and combination of parts more fully hereinafter' described and particularly pointed out in the claims.

Referring to the accompanying drawing forming a part of this specification in which like numerals designate like parts, the figure shown in the drawing is a longitudinal sectional view of my improved syringe.

The douche or syringe comprises a collapsible rubber bulb l to the mouth 2 of which is secured one end of the inner or discharge nozzle 3 which is adapted to slide within an outer sleeve or nozzle 4;. The inner nozzle is centrally bored as at 5, and is provided near its lower end with a plurality of radially disposed openings 6, which, when the inner nozzle is slid to its lower position, register with the fluid openings 7 located within the outer nozzle and permit fluid to escape back into the eompressible bulb 1. l/Vhen the inner nozzle is slid to its upper position the fluid openings G are forced to their upper or closed position where they register with the inner side walls of the outer nozzle, thereby preventing the fluid from returning back into the compressible bulb. The inner nozzle is closed at its upper end and is provided with a plurality of radially disposed openings 8 through which fluid is forced into the chamber 9 by the compressible bulb when the inner nozzle is slid to its upper position. When slid to its lower position the openings 8 register with the inner side walls of the outer nozzle, thereby preventing the fluid from returning to the bulb through the upper end of the nozzle. A shoulder 10 mounted on the upper end of the inner nozzle and engaging with the upper end l1 of the outer nozzle, limits the downward movement of the inner nozzle while the upward movement of the same is limited by the engagement of the shouldered sleeve l2 mounted on its lower end engaging with the lower end 13 of the outer nozzle. An enlarged head 11i provided with an opening 15, is removably held to the upper end of the outer nozzle by means of the shouldered and screw threaded connection 12. To the lower end of the nozzle is secured the drain cup 1G which is adapted to closely lit around the parts of which it is intended to be applied, whereby to receive the escaping liquid that has been forced from the syringe by means of the eompressible bulb.

The entire instrument with the exception of the bulb and cup, is preferably made of hard rubber.

In using my improved syringe, the compressible bulb 1 is first filled with a fluid. Vhen in place the bulb is compressed and the fluid escapes through the bore of the inner nozzle and is discharged through the outlet openings 8 into the chamber 9 and through the opening 15 in the head of the syringe to the parts to be treated. As the fluid is drained from the treated parts, it descends back into the drain cup 1G and after a quantity of fluid has accumulated within the drain cup it is returned to the compressible bulb by sliding the inner nozzle outwardly until the openings G communi cate with the openings 7. During this action the bulb 1 is compressed so that when released the contents in the cup will be expeditiously drawn into the bulb. In this way the same liquid may be used for several applications and an operation may be performed with a small amount of fluid which would otherwise require a considerable amount.

It is obvious that those skilled in the art may vary the details of construction and arrangements of parts without departing from the spirit of my invention and therefore I do not wish to be limited to such features except as may be required by the claims.

lVhat is claimed as new is:

1. A syringe having outer and inner nozzles and an outer chamber located between the outer ends of said nozzles, said inner nozzle having a series of discharge openings at its outer end and a series of inlet openings at its inner end, said outer nozzle surrounding the inner nozzle and provided with a discharge opening at its outer end and a series of inlet openings at its inner end, said inner nozzle adapted to be slidably operated for bringing the inlet openings into and out of registration and for bringing the outlet openings into and out of communication with the outlet chamber, and a compressible bulb attached to the inner nozzle.

2. A syringe having outer and inner nozzles and an outer chamber located between the outer ends of said nozzles, said inner nozzle having a series of discharge openings at its outer end and a series of inlet openings at its inner end, said outer nozzle surrounding the inner nozzle and provided with a discharge opening at its outer end and a series of inlet openings at its inner end, said inner nozzle adapted to be slidably operated for bringing the inlet openings into and out of registration and for bringing the outlet openings into and out of communication with the outlet chamber, a conipressible bulb attached to the inner nozzle, and a drain cup attached to the base of the outer nozzle. Y In testimony whereof I affix my signature in presence of two witnesses.

ARTHUR E. VILDE. Witnesses:

JOHN A. DONEGHY, M. E. LAUGHLIN.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

